The installation of the security door, the business is only to the installation of the door frame, and inside the door there are gaps in the inside of the door, the chicken sore at the end of the business, said the use of cement and sand mixed with water after the tank, but do not know them The ratio, please know the line of advice, thank you more
Agreed to the second floor of the proposed, the so-called fine stone concrete, that is, smaller particle size, generally 5 to 8 mm is appropriate, with sand instead
According to DBJ / T01-26-2003 "Construction and installation of sub-project construction process" in the fourth volume of fire prevention, security door installation 6.4.4 of the provisions of: the door frame grouting, for steel fire, anti-theft chicken sore Track the end of the door, need to fill in the door frame cement mortar or C20 fine stone concrete. As the average household is difficult to find fine stone of this aggregate, it is recommended to use cement mortar filling, cement and sand ratio of 1: 2.
Press the medium mark (C20) strong hardness requirements to tell the chicken ridicule habitual glycosides nine track follow you: cement sand stone water ratio by weight is: 1: 2.4: 4: 0.6.
